Previous revision mistakely removed fix for DIAGNOSTIC "getblk: block size
invariant failed" panic, incorporated in rev. 1.5. The problem there
has been that depending on 'off', the code did bread() of 512 and after that
1024 bytes for same 'blkno'. Fix this differently than in rev. 1.5 -
if 'off' would bump the read over to next device block, trim the read to
end on block boundary and read rest in next loop iteration. This seems
to fix the problem, and avoids the performance hit rev. 1.5 incurred.
Fix bug in code handling holes for reads via read(2) - a variable
was incremented instead of decremented.
the final null byte.
This makes programs using fts(3) (like find(1)/du(1)) print correct
name again. Problem reported by Luke Mewburn in private e-mail, thanks.
under heavy vnode usage - vget() must be called with unlocked ntnode!
Actually check the vget() return value and DTRT if it fails (i.e. when
the vnode has been recycled for other use).
to recode Unicode names to other representation, like encoding form
or national character/code sets. This replaces the ugly NTFS_U28() hack.
Use these hooks to encode the filenames to UTF-8.
scan of all directory entries; the mangled file name we return to
userland on getdents(2) may end up being unsearchable otherwise
This change is useful even through we will soon change to encode the
NTFS file names to utf-8 - we want to support recoding of filenames to
national 8bit charsets eventually.
while here, remove some unnecessary casts, change NTFS_U28() macro so that
the mangled filename doesn't contain control characters and use malloc()/free()
instead MALLOC()/FREE() for rdbuf buffer
happens fairly commonly if e.g. some files are still opened
then the unmount is attempted
* if the second vflush() (including system vnodes) fails, we should
probably panic, it's too serious; for now, just add a comment
<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>
also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
in vfs_detach(). vfs_done may free global filesystem's resources,
typically those allocated in respective filesystem's init function.
Needed so those filesystems which went in via LKM have a chance to
clean after themselves before unloading. This fixes random panics
when LKM for filesystem using pools was loaded and unloaded several
times.
For each leaf filesystem, add appropriate vfs_done routine.
proper file attribute (a.k.a. "resource fork") is picked up when
the filehandle is mapped back to filesystem object.
This should make attributes working on NFS-exported NTFS filesystems
or other layered filesystems using filehandles.
lock counts consistent. DIAGNOSTIC checks will barf otherwise.
XXX ntfs_ntput should not free the node, the reclaim vop should do it
XXX why does the ntfs code do its own internal locking?
also fixes bug introduced in previous commit - the check for VBAD device node
added in rev 1.20 was accidentaly run AFTER v_specinfo was touched,
making the check useless
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.
Bump version number to 1.4O
ntnode->ntmp->ntm_* values
ntfs_inactivate(): as NTFS doesn't support any filesystem changes,
it's not needed to check whether the file handle is stale;
the check was bogus anyway - besides the value of vp->v_usecount
was checked with unlocked vnode, the vnode was unnecessarily
_always_ recycled when the filesystem containing it has been
mounted with mask (-i parameter to mount_ntfs(1))
not specified or 0 -- unbelievable, but true
ntfs_reclaim(): don't call VOP_UNLOCK() even on FreeBSD - it's not
done for any other their filesystem, so it should not be done even
for NTFS
ntfs_access(): remove the commented-out check for immutable flag, it doesn't
make sense for NTFS
other miscelaneous cosmetic cleanups
VOP__UNLOCK() macros, g/c VOP__LOCK()
add some comments
use LK_RETRY flag as appropriate
g/c the FreeBSD vnode_pager_uncache() staff, as was done in FreeBSD tree a while
ago (actually, when they merged the first round of NetBSD patches)
use VN_LOCK() & VOP__UNLOCK() consistently throughout the code instead
of vn_lock() and VOP_UNLOCK()
minor whitespace changes
not set, unlock the vnode before calling the device's close routine and
relock it after it returns. tty close routines will sleep waiting for
buffers to drain, which won't happen often times as the other side needs
to grab the vnode lock first.
Make all unmount routines lock the device vnode before calling VOP_CLOSE().
make ntfs_ntref() real function and properly lock ip->i_interlock when
updating ip->i_usecount
g/c ntfs_uustricmp()
make ntfs_uastr[i]cmp() static, rename arguments to be a bit more mnemonic
add couple of casts to NTFS_TOUPPER() and ntfs_uastr[i]cmp() - this
corrects couple of cases when open()/stat() failed for
files which apparently existed and even showed in ls output
ntfs_ntlookup(): initialize ip properly if ntnode is found in hash table,
so that debug prints doesn't print garbage in that case
some whitespace policy
